摘要:
A process for manufacturing a road-bound, horizontally fitted vehicle body with a roof unit having an outer skin and an inward facing ceiling, or an outer skin and an inward facing ceiling with a ceiling frame, whereby the roof unit is a unit ready for installation, and a basic structure having longitudinal frames and side wall columns, the ceiling and the outer skin along with the basic structure having joining configurations that mate with each other at mutual places for joining. The ceiling has at least one fitting from a group of fittings consisting of fittings for a ceiling cover, interior cladding, cushioning against impact, sun shields, an interior rear view mirror, interior lighting, wiring, operating and display elements, sliding, raising, folding, lamellar and glass roofs, and their frame parts and the drive elements, and roof hand grips. The process includes the steps of either inserting the roof unit with the fittings from the front or rear, lowering the roof unit with the fittings or raising the roof unit with the fittings so that mutual configurations for connecting purposes of the roof unit and the basic structure are brought together and joined permanently with each other. The side wall columns of the basic structure have a configuration for connecting purposes and a configuration for connecting to the side wall columns is provided on the ceiling or ceiling frame.
摘要:
A process for manufacturing a road-bound, horizontally fitted vehicle body with a roof unit having an outer skin and an inward facing ceiling, or an outer skin and an inward facing ceiling with a ceiling frame, whereby the roof unit is a unit ready for installation, and a basic structure having longitudinal frames, the ceiling and the outer skin along with the basic structure having joining configurations that mate with each other at mutual places for joining. The process includes the steps of introducing the roof unit containing the outer skin with joining configurations, the ceiling or the ceiling and the ceiling frame, in each case with fittings already mounted in place, through an opening between the longitudinal frames, bringing the roof unit into contact with corresponding, matching configuration points of the longitudinal frames by an upward movement and permanently jointing the roof unit there.
摘要:
A process for manufacturing a road-bound, horizontally fitted vehicle body with a roof unit having an outer skin and an inward facing ceiling with a ceiling frame, whereby the roof unit is a unit ready for installation, and a basic structure having longitudinal frames. The ceiling and the outer skin along with the basic structure have joining configurations that mate with each other at mutual places for joining. The process includes the steps of introducing the ceiling frame through an opening in the basic structure for a rear or front window, moving the ceiling frame upwardly into contact with matching configuration points for connection at least one of laterally on the longitudinal frames and on front and rear cross members, fixing the ceiling frame in place, and lowering the ceiling and the ceiling frame followed by the outer skin onto the corresponding matching configuration points for connection to the longitudinal frames laterally and onto the front and rear cross members and securing there permanently.
摘要:
A process for manufacturing a road-bound, horizontally fitted vehicle body with a roof unit having an outer skin and an inward facing ceiling with a ceiling frame, and a basic structure having longitudinal frames and front and rear cross members. The ceiling and the outer skin along with the basic structure have corresponding joining configurations that mate the ceiling and outer skin to the basic structure. The process includes mating the ceiling frame to the longitudinal frames, introducing the ceiling through an opening in the basic structure for a rear or a front window, moving the ceiling upwardly into contact with the corresponding joining configurations of the basic structure for connection on at least one of the longitudinal frames and the front and rear cross members, fixing the ceiling in place, lowering the outer skin onto the corresponding joining configurations of the basic structure for connection to the longitudinal frames and onto the front and rear cross members, and permanently fixing the outer skin to the longitudinal frames and the front and rear cross members.
摘要:
The present invention relates to a catalyst composition and a process for di-, tri- and/or tetramerization of ethylene, wherein the catalyst composition comprises a chromium compound, a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNPNP-unit is member of a ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution and a co-catalyst or activator.
摘要:
The invention relates to a spreader structure (10) for introducing into a hollow organ, comprising spreader rods (12), which radiate from a first connection section (14) essentially in the longitudinal direction (36) of the spreader structure (10) up to a second connection section (16), are distributed around the periphery of the spreader structure (10) and can be placed against a wall of a hollow organ by means of radial expansion. The aim of the invention is to provide a spreader structure (10), which is versatile and cost-effective to produce. To achieve this, the spreader rods (10) have at least one zone (22) running in the longitudinal direction, which has a reduced flexural strength in comparison to neighboring zones (20, 24). The invention also relates to the use of said spreader structure, to a spreader device and to a method for positioning a spreader structure.
摘要:
The present invention relates to a method and a reactor system for preparing linear alpha-olefins by oligomerization of ethylene in the presence of an organic solvent and an oligomerization catalyst, wherein a product fraction of C10+ alpha-olefins contaminated with aromatic C9+ compounds is separated from a product main stream and transferred into a conversion reactor, where C10+ alpha-olefins and aromatic C9+ components are reacted in the presence of a Friedel-Crafts alkylation catalyst to produce aromatic C19+ compounds.
摘要:
The present invention relates to a method and a reactor system, for the oligomerization of ethylene, comprising oligomerizing ethylene in a reactor in the presence of a solvent and a catalyst composition to produce a liquid product stream comprising linear alpha-olefins, solvent and catalyst composition, and deactivating and extracting the catalyst composition in said liquid product stream by mixing it with a polar phase in a dynamic mixing device having rotor and stator elements comprising concentric tool rings.
摘要:
The present invention relates to a method for preparing linear alpha-olefins (LAO) by oligomerization of ethylene in the presence of solvent and homogenous catalyst, comprising the steps of: (i) feeding ethylene, solvent and catalyst into an oligomerization reactor, (ii) oligomerizing the ethylene in the reactor, (iii) removing a reactor outlet stream comprising solvent, linear alpha-olefins, ethylene, and catalyst from the reactor via a reactor outlet piping system, (iv) transferring the reactor outlet stream to a catalyst deactivation and removal step, and (v) deactivating and removing the catalyst from the reactor outlet stream, characterized in that at least one organic amine is added into the oligomerization reactor and/or into the reactor outlet piping system.
摘要:
The present invention relates to a catalyst composition comprising: (a) a binuclear chromium(II) complex; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—N(R5)—H or (B) R1R2P—N(R3)—P(R4)—N(R5)—PR6R7, wherein R1, R2, R3, R4, R5, R6 and R7 are independently selected from halogen, amino, trimethylsilyl, C1-C10-alkyl, aryl and substituted aryl, wherein the PNPN- or PNPNP-unit is optionally part of a ring system; and (c) an activator or co-catalyst, as well as to a process for oligomerization of ethylene.
摘要翻译:本发明涉及一种催化剂组合物,其包含:(a)双核铬(II)络合物; (R)R(R)-N(R 5)-H或(B)R 1 R 2 P -N(R 3)-P(R 4)-N(R 5) -PR 6 R 7,其中R 1,R 2,R 3,R 4,R 5,R 6和R 7独立地选自卤素,氨基,三甲基甲硅烷基,C 1 -C 10 - 烷基,芳基和取代的芳基,其中PNPN-或PNPNP-单元任选地是 环系; 和(c)活化剂或助催化剂,以及乙烯低聚方法。